US2780794A - Pressure connector - Google Patents

Pressure connector Download PDF

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Publication number
US2780794A
US2780794A US368160A US36816053A US2780794A US 2780794 A US2780794 A US 2780794A US 368160 A US368160 A US 368160A US 36816053 A US36816053 A US 36816053A US 2780794 A US2780794 A US 2780794A
Authority
US
United States
Prior art keywords
terminal
connector
conductor
tool
jaws
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US368160A
Other languages
English (en)
Inventor
George M Cresson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Priority to US368160A priority Critical patent/US2780794A/en
Priority to CH325979D priority patent/CH325979A/de
Priority to DEI8847A priority patent/DE1025035B/de
Priority to FR1110799D priority patent/FR1110799A/fr
Application granted granted Critical
Publication of US2780794A publication Critical patent/US2780794A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/027—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for connecting conductors by clips
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5193—Electrical connector or terminal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/532—Conductor
    • Y10T29/53209—Terminal or connector
    • Y10T29/53213—Assembled to wire-type conductor
    • Y10T29/53222—Means comprising hand-manipulatable implement
    • Y10T29/5323—Fastening by elastic joining
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/532—Conductor
    • Y10T29/53209—Terminal or connector
    • Y10T29/53213—Assembled to wire-type conductor
    • Y10T29/53239—Means to fasten by elastic joining
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53478—Means to assemble or disassemble with magazine supply
    • Y10T29/53487—Assembling means comprising hand-manipulatable implement

Definitions

  • This invention relates to an arrangement for connecting an electrical conductor to a terminal, and particularly to a connector which provides good electrical contact between the conductor and the terminal by continuous pressure or compression force exclusive of solder, weld or like connecting means.
  • this invention relates to the so called pressure or mechanical connector for electrically joining a conductor to a terminal.
  • a third type of pressure connector is known as the compression type; this type of connector was preformed and a comparatively heavy tool was required to compress the connectoragainst the terminal to make good electrical contact therewith, and here again the tendency to spring back produced an inherent disadvantage.
  • the connector of this invention finds particular applicability in the telephone industry, where the terminals are spaced usually closely together, the compression type connector which required a heavy and sizeable tool obviously was unsatisfactory because of the space limitations.
  • Another object of my invention is to provide a connector which upon being applied over the terminal, produces a rubbing as well as pressure action and thus wipes clean the conductors, thereby ensuring good electrical contact therewith.
  • a feature of my invention is to provide a tool for applying my unique connector automatically and rapidly.
  • an arrangement for connecting an electrical conductor to a terminal comprising a resilient electrical connector member dimensioned for a light press fit on said terminal.
  • a tool is provided for forcing the connector member over the terminal and conductor to achieve a wiped contact at a sustained pressure between said conductor and said terminal. This produces a fit tighter than said light press fit because the connector is forced over both the conductor and terminal.
  • Fig. 1 illustrates in perspective a preferred embodiment of the invention
  • Fig. 2 shows in cross-section a view taken along lines 2-2 of Fig. 1;
  • Fig. 3 is a fragmentary plan view showing a tool applying a connector to the terminal illustrated in Fig. 1;
  • Fig. 3A shows an end view of the jaws of the tool
  • Pig. 4 is a diagrammatic view illustrating a type of magazine feed adapted to permit automatic and rapid application of the connector over the terminal;
  • Fig. 5 illustrates a second embodiment of my invention
  • Fig. 6 is a plan view of the terminal used in the embodiment shown in Fig. 5;
  • Fig. 7 shows the tool adapted to remove the connector from the terminal.
  • FIGs. 1 and 2 there is shown a preferred arrangement for connecting an electrical conductor 1 to a flat elongate terminal strip 2.
  • the terminal is provided with an opening 3, shown as a slot formed longitudinally in the terminal 2; the opening being of dimensions to receive the conductor 1 with little clearance.
  • a resilient connector member t is provided, preformed in the shape of a clip and having a base portion 5, and a pair of integral arms 6 and 7 reversely disposed towards each other to form a substantially C-shaped element.
  • the arms andbase portions are so dimensioned to slide with a light press fit over the terminal, without the conductor positionedtlierein. Therefore, when the connector is forced over the terminal and conductor, it will wipe the longitudinal edges of the terminal and the engaging surface of the wire thereby providing good electrical contact between the wire and connector and between the opposite edges of the .terminal and connector. Since the connector is made from a suitably resilient material, the proper pressure'is substantially maintained, i. e., pressure to maintain suitable electrical contact between the terminal and the conductor.
  • a tool for applying the connector 4 to force that por tion of the conductor extending below the terminal against the bottom of the terminal strip is shown diagrammatically in Figs. 3 and 3A.
  • the particular design of the tool may be varied to suit a specific purpose. For this reason, only a diagrammatic showing of the operating members explaining the principles of operation is shown.
  • the tool 8 comprises a pair of diametrically opposed jaws 9 and 10 for gripping a pair'of oppositely disposed notches 11 and 12 formed'in the longitudinal edges of the terminal 2.
  • the ends 14 and 15, respectively, of the jaws 9 and it) maybe pro- 'vided with angular notches or grooves such as shown in Fig. 3A to improve the frictional grip on the terminal 2.
  • angular notches or grooves such as shown in Fig. 3A to improve the frictional grip on the terminal 2.
  • the frictional grip of the grooves is sufiiciently great against the longitudinal edges of the terminal, the notches 11 and 12 will not be required.
  • the end of the terminal 2 is positioned in alignment with the opening of the clip 4, whereby the clip is applied over the terminal by producing a relative longitudinal movement between jaw members 9, 10 and the body portion 13, which holds the clip 4 in fixed position relative thereto.
  • alignment may be, and preferably is, facilitated by a suitable lead or locating device in the nose of the tool.
  • the tool illustrated in Fig. 3 comprises a pair of'hand grips 17 and 18 pivotally connected at 19.
  • a spring 2 may be provided to maintain the hand grips in the position shown when the tool is not operated.
  • a bridge member 21 mechanically coupling the jaw members 9 and 10, fixes the jaw members on the terminal, and relative motion is produced in the body portion 13.
  • the bridge member 21 is coupled to the handle 18 via a stud 22 fastened to a connecting rod 23; the connecting rod 23 actuating the bridge member and thus the jaw members.
  • FIG. 4 one arrangement is shown for feeding the clip 3 to the tool member 8 in which'the tool is manually fed by loading clips into the tubular portion 24 of the housing 13.
  • the tubular portion should be long enough to provide a bridge between the one being applied and the actuating mechanism at the rear.
  • the tool also may be automatically loaded by means of a magazine resembling a machine gun feed belt such as illustrated in Fig. 4. In this way, as a connector leaves the tubular portion, another connector from the magazine is fed to the tube to replenish the supply.
  • many other methods for feeding the connectors to the tubular portion 24 may be devised in accordance with the principles of this invention.
  • FIGs. 5 and 6 A second embodiment of my invention is illustrated in Figs. 5 and 6.
  • a tubular type terminal 25 is used having sufiicient flanges to be secured in an insulated panel such as shown at 26.
  • the upper portion 27 of the tubular terminal 25 may resemble a segment of a sphere or the top thereof may be apertured.
  • a slot 28 (Fig. 6) is formed in the cylindrical portion of the terminal, into which the conductor 1 is placed.
  • recessed portions 29 and 30 may be provided in the terminal, recessed portions 29 and 30, respectively, into which the conductor 1 is pressed upon application of the connector 31.
  • Recessed portions 29 and 30 should not be of such depth as to receive entirely the diameter of the conductor.
  • the connector 31 is in the shape of a cap member having a crown portion 32 and a top portion 33 provided with a hole 34.
  • the connector may be applied in a manner similar to the one described in connection with the embodiment of Fig. 1.
  • the ends'14, 15 of the jaws 9 and 10 grip a collar 35 formed on the surface of the terminal, so that the connector may be forced over the terminal, wiping and wedging the conductor into the recessed portions 29 and 30. 7
  • the connector is so dimensioned to actually wipe the contacting portions between the connector and the conductor, to
  • the connector may be easily and simply removed by means of an attachment 36 in the form of a stud, which may be positioned inside the hollow tubular portion and abutting the end 37, thereof as shown in Fig. 7.
  • the stud 36 is placed through the hole 34 in the top portion of the connector 31 and abuts the terminal portion 27 of the tubular terminal 25.
  • the ends of the jaws 14 and 15 are positioned below the lower edge 38 of the crown portion 32, and by producing relative motion between the jaws 9, 10 and the stud 36, the connector is simply removed from the terminal.
  • the connector is simply removed from the flat terminal 2 by positioning the stud 36 to abut the end of the terminal 2 and positioning the jaws 9 and 10, as shown in Fig. 7, to abut against the clip 4 whereby the clip is removed by retracting the jaws.
  • An arrangement for connecting an electrical conductor to a terminal comprising means for joining loosely said conductor to said terminal, a resilient electrical connector member dimensioned for a light press fit on said terminal, and a tool comprising means for gripping said terminal, means for engaging said connector member, and means mechanically coupling said gripping means and said member-engaging means for forcing said connector member over said terminal and conductor, to achieve a wiped contact at a sustained pressure between said conductor and said terminal, and to produce a fit tighter than said light press fit.
  • said connector is in the shape of a clip having a base portion and a pair of integral arms reversely disposed towards each other, the arms and base portions being dimensioned to slide with a light press fit over said terminal.
  • said terminal is a flat elongate member having a pair of oppositely disposed notches formed in the longitudinal edges thereof a given distance from the leading edge of said connector, and the gripping means of said tool comprises a pair of diametrically opposed jaws for gripping said notches while applying said connector member to said terminal.
  • said tool further comprises a hollow tube for holding a plurality of said clips in alignment, the leading clip of which is applied over said terminal strip, and means for moving said aligned clips forward after said first clip is removed.
  • said tool further comprises means for feeding clips to said tube, whereby there is maintained continuously a given number of clips in said hollow tube.
  • said connector is in the shape of a cap member having a crown portion and a top portion, the crown portion thereof being dimensioned to slide with a light press fit over said terminal and conductor.
  • terminal is a tubular member comprising a circumferential collar projecting on the surface of said member but spaced from said connector, and said tool comprises a pair of diametrically opposed jaws for gripping said collar.
  • said terminal is a tubular member including an aperture formed by a cut-out segment in the top portion thereof dividing it into two parts, the cut-out segment being approximately the thickness of the conductor, said member comprising longitudinal recessed portions extending a given distance from the ends of said aperture, whereby the conductor is wiped and forced tightly into the recessed portions upon said connector being applied over said terminal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
US368160A 1953-07-15 1953-07-15 Pressure connector Expired - Lifetime US2780794A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US368160A US2780794A (en) 1953-07-15 1953-07-15 Pressure connector
CH325979D CH325979A (de) 1953-07-15 1954-06-29 Lösbare Verbindungsstelle zwischen einem elektrischen Leiter und einer Anschlussklemme sowie Verfahren und Werkzeug zur Herstellung derselben
DEI8847A DE1025035B (de) 1953-07-15 1954-06-30 Verfahren zum Herstellen einer loesbaren elektrischen Verbindung zwischen einem Leiter und einem Klemmteil unter Verwendung eines federnden Verbinders sowie Montagewerkzeug zur Durchfuehrung des Verfahrens
FR1110799D FR1110799A (fr) 1953-07-15 1954-07-15 Connecteur électrique à pression

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US368160A US2780794A (en) 1953-07-15 1953-07-15 Pressure connector

Publications (1)

Publication Number Publication Date
US2780794A true US2780794A (en) 1957-02-05

Family

ID=23450089

Family Applications (1)

Application Number Title Priority Date Filing Date
US368160A Expired - Lifetime US2780794A (en) 1953-07-15 1953-07-15 Pressure connector

Country Status (4)

Country Link
US (1) US2780794A (de)
CH (1) CH325979A (de)
DE (1) DE1025035B (de)
FR (1) FR1110799A (de)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3186078A (en) * 1963-05-21 1965-06-01 Amp Inc Apparatus for making electrical connections
US3186074A (en) * 1964-04-08 1965-06-01 Amp Inc Apparatus for making electrical connections
US3186075A (en) * 1964-04-13 1965-06-01 Amp Inc Apparatus for making electrical connections
US3189983A (en) * 1963-01-09 1965-06-22 Amp Inc Tool for making electrical connections
US3239918A (en) * 1962-02-05 1966-03-15 Amp Inc Method of making an electrical connection
US3243757A (en) * 1964-01-20 1966-03-29 Amp Inc Electrical connections
US3249983A (en) * 1962-02-05 1966-05-10 Amp Inc Apparatus for making electrical connections
US3251022A (en) * 1963-08-19 1966-05-10 Kemper M Hammell Electrical connector clip
US3257713A (en) * 1965-03-22 1966-06-28 Amp Inc Tool for making electrical connections
US3273102A (en) * 1965-08-17 1966-09-13 Amp Inc Series electrical connections
US3440723A (en) * 1968-03-07 1969-04-29 Amp Inc Apparatus for making electrical connections
US3550068A (en) * 1968-11-07 1970-12-22 Thomas & Betts Corp Connector
FR2503463A1 (fr) * 1981-04-03 1982-10-08 Lacroix Jacques Dispositif de connexion
EP0638292A1 (de) * 1993-08-09 1995-02-15 Kijuro Hayano Drahtverbindungsgerät
US5653711A (en) * 1994-08-08 1997-08-05 Kijuro Hayano Wire fastening tool
EP0707358A3 (de) * 1994-10-13 1998-04-01 Ethicon, Inc. Stecher zur Verbindung an einem abisolierten Ende eines Herzelektrodendrahts

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1255800B (de) * 1960-02-27 1967-12-07 Elektro App Werke Berlin Trept Unloesbare Klemmverbindung fuer Stromwandler
US3071750A (en) * 1960-04-05 1963-01-01 Amp Inc Solderless electrical connectors
US3123431A (en) * 1961-07-18 1964-03-03 Electrical connector
FR2668861B1 (fr) * 1990-11-07 1995-06-02 Duclos Environnement Piece de raccordement de conducteurs electriques, notamment pour prise de terre.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US833135A (en) * 1906-02-07 1906-10-09 Pittsfield Spark Coil Company High-tension terminal for spark-coils.
US1961235A (en) * 1927-06-20 1934-06-05 Mccormick Lewis Montford Connecter for electric conductors

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US833135A (en) * 1906-02-07 1906-10-09 Pittsfield Spark Coil Company High-tension terminal for spark-coils.
US1961235A (en) * 1927-06-20 1934-06-05 Mccormick Lewis Montford Connecter for electric conductors

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3239918A (en) * 1962-02-05 1966-03-15 Amp Inc Method of making an electrical connection
US3249983A (en) * 1962-02-05 1966-05-10 Amp Inc Apparatus for making electrical connections
US3189983A (en) * 1963-01-09 1965-06-22 Amp Inc Tool for making electrical connections
US3186078A (en) * 1963-05-21 1965-06-01 Amp Inc Apparatus for making electrical connections
US3251022A (en) * 1963-08-19 1966-05-10 Kemper M Hammell Electrical connector clip
US3243757A (en) * 1964-01-20 1966-03-29 Amp Inc Electrical connections
US3186074A (en) * 1964-04-08 1965-06-01 Amp Inc Apparatus for making electrical connections
US3186075A (en) * 1964-04-13 1965-06-01 Amp Inc Apparatus for making electrical connections
US3257713A (en) * 1965-03-22 1966-06-28 Amp Inc Tool for making electrical connections
US3273102A (en) * 1965-08-17 1966-09-13 Amp Inc Series electrical connections
US3440723A (en) * 1968-03-07 1969-04-29 Amp Inc Apparatus for making electrical connections
US3550068A (en) * 1968-11-07 1970-12-22 Thomas & Betts Corp Connector
FR2503463A1 (fr) * 1981-04-03 1982-10-08 Lacroix Jacques Dispositif de connexion
EP0062579A1 (de) * 1981-04-03 1982-10-13 Jacques Lacroix Verbindungsgerät
EP0638292A1 (de) * 1993-08-09 1995-02-15 Kijuro Hayano Drahtverbindungsgerät
US5607429A (en) * 1993-08-09 1997-03-04 Kijuro Hayano Wire fastening tool
US5653711A (en) * 1994-08-08 1997-08-05 Kijuro Hayano Wire fastening tool
EP0707358A3 (de) * 1994-10-13 1998-04-01 Ethicon, Inc. Stecher zur Verbindung an einem abisolierten Ende eines Herzelektrodendrahts

Also Published As

Publication number Publication date
CH325979A (de) 1957-11-30
DE1025035B (de) 1958-02-27
FR1110799A (fr) 1956-02-16

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